Skill Course: Manufacturing and Repair of Electrical Transformer

Teacher

Swakantik Mishra

Category

Skill Courses

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Skill Course Name : Manufacturing and Repair of Electrical Transformer

Code(Credit) : CUTM0303(0-4-0)

Course Objectives

This programme is expected to develop functional competencies of students in transformer Manufacturing and Repair upto 33 KV class.

Learning Outcomes

  • Carry out inspection:To ensure equipment are under healthy state with and to detect any types of faults.
  • Perform testing activity: for any suspicious inspection testing of system to be done to detect any faults or working condition of equipment.
  • Repair, Overhaul and delivery of tested distribution transformer: carrying out repair and maintenance activity in damaged distribution transformer and ensure overall health of the distribution transformer

Course Syllabus

Module 1 (1-1-0)

Basic of Electricity

Practice: Calculating Resistance of Transformer

Module 2 (1-1-0)

Basics of transformer operation

Practice: Operating a Transformer

Module 3 (1-4-0)

Identification of different parts of Transformer

Practice: Onsite Visulal Inspection

Module 4 (1-2-0)

Materials Required for Manufacturing  of transformer

Practice: Making of Bill of Material

Module 5 (1-3-0)

Parameter of Core and tank dimension calculation

Practice: calculation Core and tank dimension

Module 6 (1-3-0)

Transformer core Assembly

Practice: core Assembling

Module 7 (1-3-0)

Manufacturing of transformer winding

Practice: Manufacturing Calculation

Module 8 (1-3-0)

Manufacturing of transformer tank and accessories

Practice: Manufacturing Calculation

Module 9 (1-3-0)

Testing and Commissioning

Practice: Norms to be followed in Commissioning

Module 10 (1-3-0)

Core Assembly & Box-up

Practice: Assembling Job

Module 11 (1-3-0)

Inspection of Faults in Transformer

Practice: Facult Finding in Transformer

Module 12 (1-2-0)

Repair, overhaul and delivery of tested transformer

Practice: Repairing & Testing a Transformer

Module 13 (1-2-0)

Safety practices with power related work

Practice: Electrical Fire Know-how, Use of Fire Extinguisher & Safety

Module 14 (1-1-0)

Cost analysis of repair and Manufacturing of transformer

Practice: Cost sheet Calculation

Reference:

A.K. Sawhney,  “A course in Electrical Machine Design”, Dhanpat Rai & Sons, New Delhi, 1996.

Session Plan

Session 1

Introduction: Basics of Electrical quantities; basic knowledge about transformer.

Video:

https://www.youtube.com/watch?v=ukxRD2SShoc

Session 2

Session 3

Electrical Fire Hazards & Fire Safety

Video:

https://www.youtube.com/watch?v=kuDfDWUrEus

Session 4

Transformer operation

Video:

https://www.youtube.com/watch?v=vh_aCAHThTQ

Session 5

Identification of different parts of Transformer

Video:

https://www.youtube.com/watch?v=ZHaTbk8dJgQ

Session 6

Materials Required for Manufacturing  of transformer and procurement

Video:

https://www.youtube.com/watch?v=ecDaFvpWVYw

Session 7

Core and tank dimension calculation

Session 8

Calculation & Manufacturing of transformer winding

Session 9

Core Assembly & Box-up

Session 10

Core and Coil Assembly & Box-up

Session 11

Testing and Commissioning

Session 12

Inspection of Faults in Transformer

Session 13

Repair, overhaul and delivery of tested transformer

Session 14

Oil Filteration & Filling

Session 16

Billing & Final Dispatch

Session 15

Denting & Painting

Case Studies 1: Fault Analysis of 3 Phase, 11 KV class Tansformer 

Case Studies 2: Quality Testing in 250 KVA, 11KV class Transformer

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    Our Main Teachers

    Swakantik Mishra is serving as a faculty in Electrical & Electronics Department, He is having 10+ years of experences in Power/Energy Industry & Education sector. He holds a master’s & bachelor’s degree in electrical engineering, He is also a management graduate in Operations & HR area.